The MPG Illusion

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Catherine Wolfram: Consumers are likely purchasing both too many gas guzzlers and too many super-efficient plug-in hybrids, and avoiding vehicles with mid-range MPG ratings more than they would if they weren’t under the MPG Illusion.

Marketing Solar: Future Regulations Hold Key

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Catherine Wolfram: Future regulations place substantial uncertainty on future bills, so that simple assumptions that project a flat or increasing value of bill savings over time (in real terms) may not be accurate.